Key parameters design for 600 MW unit boiler firing 100% Zhundong high alkali coal

ZHAO Yonggang; WANG Zhichao; YAO Hao; BAI Yang; ZHU Jia; RAN Shenming; XU Huijun; YAO Wei

doi:10.19666/j.rlfd.201908171

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Key parameters design for 600 MW unit boiler firing 100% Zhundong high alkali coal

更新时间：2025-09-28

- Key parameters design for 600 MW unit boiler firing 100% Zhundong high alkali coal
- Thermal Power Generation Vol. 49, Issue 6, Pages: 111-117(2020)
- 作者机构：
  
  1. 神华国能(神东电力)集团公司
  2. 西安热工研究院有限公司
  3. 东方电气集团东方锅炉股份有限公司
  4. 国家能源投资集团有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.201908171
  CLC： TK223.2
- Published Online：24 May 2020，
  
  Published：2020
- 稿件说明：
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ZHAO Yonggang, WANG Zhichao, YAO Hao, et al. Key parameters design for 600 MW unit boiler firing 100% Zhundong high alkali coal[J]. Thermal power generation, 2020, 49(6): 111-117.
DOI：

ZHAO Yonggang, WANG Zhichao, YAO Hao, et al. Key parameters design for 600 MW unit boiler firing 100% Zhundong high alkali coal[J]. Thermal power generation, 2020, 49(6): 111-117. DOI： 10.19666/j.rlfd.201908171.

摘要

准东高碱煤属于高全水分、中等热值、低灰分、特低～低有害元素含量(低磷、特低氯、特低氟、低砷含量)、易磨、极易着火和极易燃尽煤种

燃烧性能优良

但由于准东高碱煤煤灰中碱金属尤其是Na_2O含量较高

具有严重结渣沾污倾向。本文以600 MW等级机组为例

对现役机组掺烧高碱煤运行性能进行分析

并参考现役350 MW全烧准东煤锅炉运行状况

对炉膛关键参数采取理论计算与实践经验数据相结合方式

提出了全燃准东高碱煤的660 MW机组锅炉炉膛、受热面、燃烧器、制粉系统、吹灰系统等的关键参数及系统设计布置

可为全燃准东高碱煤的600 MW等级机组锅炉设计提供借鉴。

Abstract

The high alkali coal in Jundong has high total moisture content

medium calorific value

low ash content

extremely low to low harmful element content(low phosphorus

extremely low chlorine

extremely low fluorine

low arsenic content)

and is easy to grind and very easy to ignite.It is extremely flammable and has good combustion performance.However

due to the high content of alkali metals

especially Na_2O

in the high alkali coal ash in Jundong

it has a tendency of serious slagging and contamination.By taking the 600 MW unit as an example

the operation performance of the unit co-firing Zhundong high alkali coal was analyzed.Moreover

according to the operation status of in service 350 MW unit boiler firing 100% Zhundong coal

the key parameters and system arrangement of the furnace chamber

heating surface

burner

pulverizing system and ash blowing system for 660 MW unit boiler firing 100% Zhundong high-alkali coal are put forward

by combining theoretical calculation with practical experience data.The research can be used as a reference for the design of 600 MW unit boiler firing 100% Zhundong high alkali coal.

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